Morning Market Losers

CECO Environmental Corp. (NASDAQ: CECE) dropped 11.07% to $12.94 after the company reported downbeat quarterly results.

Embraer SA (NYSE: ERJ) shares fell 9.97% to $31.42 after the company reported Q4 results and issued a 2015 outlook.

Cross Country Healthcare, Inc. (NASDAQ: CCRN) shares declined 8.37% to $11.17 on Q4 results. CrossCountry Healthcare reported Q4 adjusted earnings of $0.03 per share.

Joy Global, Inc. (NYSE: JOY) shares slipped 6.42% to $39.42 after the company reported weaker-than-expected results for the first quarter of fiscal 2015 and lowered its guidance for the year.

Eclipse Resources Corporation (NYSE: ECR) declined 6.40% to $6.73. Eclipse reported a Q4 loss of $0.21 per share on revenue of $138 million.

AbbVie Inc. (NYSE: ABBV) shares fell 4.51% to $57.55 after the company after the company announced its plans to acquire Pharmacyclics (NASDAQ: PCYC) for $261.25 per share in cash and stock.

Alaska Communications Systems Group Inc. (NASDAQ: ALSK) slipped 4.14% to $1.62 after the company reported a quarterly loss of $0.11 per share on revenue of $77.5 million.

Conns Inc. (NASDAQ: CONN) shares dropped 4.12% to $24.99 after the company announced February sales and delinquency data. The company's net sales for the month rose 4.9% to $95.4 million.

H&R Block, Inc. (NYSE: HRB) shares tumbled 3.26% to $32.33. H&R Block posted a narrower-than-expected loss for the fiscal third quarter, but the company's revenue missed analysts' estimates.

CommScope Holding Company, Inc.(NASDAQ: COMM) shares dipped 1.44% to $30.73 after the company reported the sale of 20 million shares of common stock by an affiliate of the Carlyle Group (NASDAQ: CG).